Best Modem for JVT? - Galaxy S I9000 Q&A, Help & Troubleshooting

Hi,
what Modem would you suggest to use with GB JVT?
My wifi signal is always rather weak (no or poor signal, when other devices still have a good connection) and I also have GPS issues sometimes. I was on JVQ till today but JVT modem does not seem so be any better.
I can still remember that both, wifi and GPS worked much better when I was on Froyo...
Any Ideas?

Semaphore kernel, fastest ive used, and most reliable and has support for init.d. if i helped please click on the thanks button

Im inthe UK and found exactly the same as you. Having tried a few modems im settled on ZSJPG. give it a try m8 see what you think. Not sure on battery drain seemed no more than the others but it keeps signal where JVT and JVQ was struggling.

GalaxySN00B:0 said:
Semaphore kernel, fastest ive used, and most reliable and has support for init.d. if i helped please click on the thanks button
Click to expand...
Click to collapse
Did he ask about kernel?
I have been using ZSJPG too. Best for me. You should really try it out

Likewise, ZSJPG is the best for me too. I found battery life is loads better with it as well, I believe it's a Japanese modem that's been optimised for use in built up areas though so it may depend on the area you're in. I'm in London, and it works amazingly for me...

Erakko said:
Did he ask about kernel?
I have been using ZSJPG too. Best for me. You should really try it out
Click to expand...
Click to collapse
He spoke about Wifi. This is controlled by the kernel.
GPS on the other hand is controlled (AFAIK) by the modem.
When I was in Deutschland I ran with KG3 and it was good for both battery life and speed.
I have tried ZSJPG and that's excellent for battery life and for call quality. I found it did dodgy things to my GPS and the download speeds.

So from what cointry sre yoy? Im from germany and like tje jvs modem
Sent from my GT-I9000 using Tapatalk

Follomon said:
So from what cointry sre yoy? Im from germany and like tje jvs modem
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
EDIT: Ignore what I just said, you were on Tapatalk. From Australia matey.
On XXJVT now and the JVT modem gives me no issues but I'm on Teamhacksungs ICS Build 6. Seems to have pretty much bugger all standby battery drain unless you sync google photos to your Gallery or involve the stock email app.

it all depends on the locations you're from ZSJPG is for mainly asian countries but it works a charm on other countries i recommend you go to a german galaxy s forum and asking there such as GOAtools.de to ask

Related

[Q] Which ROM/modem? AT&T, GPS, HSUPA

I haven't flashed a new ROM in awhile and really don't want to have to go through every ROM/modem combination to find one that works for my needs. I know plenty of folks here go through almost every ROM that is available so I'm hoping to pick your brains.
1) I'm NOT asking "what is the best ROM". I <3 -all- of the ROM authors and don't wish to start that kind of mess.
2) I'm willing to try a couple of combinations to see.
3) My Cappy is brand new (I just exchanged my old one under warranty since I was one of those in the original batch that got the lovely random shutdown issue even with 2.1-update1) ... not sure if that is going to matter or not but I've read a lot of posts that seem to make it clear that different Cappy batches behave better with different ROMs.
So ... what I'm primarily looking for:
* I'm on AT&T so I need 850
* I would REALLY like to get improved GPS performance ... I don't want to buy a standalone GPS (wife has one, I'll use it when I have to) ... right now even with the GPS tweaks like Skyhook I'm just not getting acceptable lock times and it loves to break lock.
* HSUPA ... I'd like to enable HSUPA. I'm fortunate enough to live in an area with a new 3G tower and small population, which means I know there is more bandwidth available so I might as well use it. Especially since on occasion I need to tether.
* I don't want to lose noise cancellation
* I would like a ROM with good battery performance
Otherwise I'm not concerned with new features ... besides the issues above I do fine with the 2.1 ROM (not saying I don't want 2.2, just saying I don't care whether the custom ROM includes custom launchers, themes, etc). I would -like- working Bluetooth + HSUPA but my version of "working Bluetooth" doesn't care about voice dialing.
PS. I've read a number of threads on ROMs and modems ... but my brain hit information overload once I started trying to match up both. I probably could have settled on a single ROM -or- modem, but trying to get them to mesh well just didn't compute.
Everyone has different experiences with different roms. I know it's a cliche but it's true. I've had pretty much no gps in a rom that boasts about gps. Best to try each rom and see if you like any.
Sent from my SAMSUNG-SGH-I897
Personally I love my combo of darky's 9.1 with suckerpunch oc/uv kernel and the tjl3 modem. I really haven't used the gps much and so I can't say about that (make sure to use faster fix to get the right region). The battery life is all day for me and I use stereo bluetooth headphones all day. I really like the look too. I don't know if it has noise canceling though. Hopefully this is helpful.
HSUPA requires an I9000 based ROM with a matching modem.
I'm using Serendipity 5.0 with a JK4 modem.
Perception 10.3 with JK4 modem + Firebird2 0.8
ua549 said:
HSUPA requires an I9000 based ROM with a matching modem.
I'm using Serendipity 5.0 with a JK4 modem.
Click to expand...
Click to collapse
OR
Andromeda with an i9000 modem.....it works
ive had mine a total of 3weeks. I went with cog. 3.04 speedmod kernel. My problem is that none of the I9000 modems would work with it. Im running a jj4 modem. For 3g
Sent from my SAMSUNG-SGH-I897 using XDA App
ke5tny said:
ive had mine a total of 3weeks. I went with cog. 3.04 speedmod kernel. My problem is that none of the I9000 modems would work with it. Im running a jj4 modem. For 3g
Does your Bluetooth work with that combo?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I897 using XDA App
I primarily use the wired one. Ill try it later tonite and will Post results
Sent from my SAMSUNG-SGH-I897 using XDA App
Ok. I get static on bt with my combo....
Sent from my SAMSUNG-SGH-I897 using XDA App
The only way to have noise cancellation is to stay with 2.1. From what I understand, att is the only one to have included the noise cancellation chip and since we do not yet have an official Att 2.2 source we can not take advantage of the chip.
Not sure on this one, but doesn't i9000 based roms have the bt static issue? And is the i9000 roms the only ones that let you have hsupa? Sorry a lot of information is on this site and I am trying to learn as much as I can.
Sent from my SAMSUNG-SGH-I897 using XDA App
Pirateghost said:
OR
Andromeda with an i9000 modem.....it works
Click to expand...
Click to collapse
+1
Started with the included modem (??), flashed jk4 with CWM (didn't help), moved to Telus JL3. I like JL3 better right now.
Just know that you have to pay attention to what ROM you're using. If you're running a I9000 rom, you have to use a I9000 modem.
Thanontos said:
The only way to have noise cancellation is to stay with 2.1. From what I understand, att is the only one to have included the noise cancellation chip and since we do not yet have an official Att 2.2 source we can not take advantage of the chip.
Not sure on this one, but doesn't i9000 based roms have the bt static issue? And is the i9000 roms the only ones that let you have hsupa? Sorry a lot of information is on this site and I am trying to learn as much as I can.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
The way to get Bluetooth to work on a i9000 Rom is to have a i9000 Rom +i9000 kernel +i9000 modem you will have both hspa plus Bluetooth working
Sent from my SAMSUNG-SGH-I897 using XDA App
yokozuna82 said:
The way to get Bluetooth to work on a i9000 Rom is to have a i9000 Rom +i9000 kernel +i9000 modem you will have both hspa plus Bluetooth working
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
But you wont have the audience chip working.
Sent from my SAMSUNG-SGH-I897 using Tapatalk
Also using Darkys 9.1 and find the battery life is great. The only I see is wifi stops connecting after 1 day or so, but a reboot brings it back up.
What improvements did you see with the suckerpunch kernel?
SSMI said:
Personally I love my combo of darky's 9.1 with suckerpunch oc/uv kernel and the tjl3 modem. I really haven't used the gps much and so I can't say about that (make sure to use faster fix to get the right region). The battery life is all day for me and I use stereo bluetooth headphones all day. I really like the look too. I don't know if it has noise canceling though. Hopefully this is helpful.
Click to expand...
Click to collapse
Also using Darkys 9.1 and find the battery life is great. The only I see is wifi stops connecting after 1 day or so, but a reboot brings it back up.
What improvements did you see with the suckerpunch kernel?
Captivate ROM
IMO just give me a Captivate ROM for my Captivate phone that's up to date without all the BS
gps1539 said:
Also using Darkys 9.1 and find the battery life is great. The only I see is wifi stops connecting after 1 day or so, but a reboot brings it back up.
What improvements did you see with the suckerpunch kernel?
Click to expand...
Click to collapse
+1
I got more or less 12 hours with that combo uv'ed to 800 mhz with active gps (my tracks) running for 3 hours, then music playing and playing angry birds and wifi active
But I had to calibrate my battery twice first
Swyped from my captivate
Please delete

Mod please delete. Thank you.

Old
good to know, i am using that rom too. you can try speedmod kernel also, for the modem, it needs to be i9000 compatible.
I have success with both firebird kernal and speedmod kernel with the kp1 modem and the jk4 modem. You could tries these modems and see if they work for you. Not every modem will work the same for every phone in any location. You will just have to keep trying them out until you find one that works for you
well about every modem ive tried. aka or rom. works. just the poor call quality or slow network speeds. i tried speedmod last night. no go on ji6. whats wierd is on cognition or the leaked 2.2 froyo they work perfect on ji6. no matter the kernel. which i tried speed mod. glitterballs .4. so ill go out and find an i9000 kernel.
I am running dill's 6.0 with kp1 modem, 2 days now heavy phone use talking, texting, browsing and downloading. Absolutely no connection issues with kp1 at all so far. No voice quality issues either.
miketucky350 said:
hi everyone. I have a captivate. live in america. Well i have had slow network speeds with jk4 jk3. jl1 jl2 plus poor call quality on the other end. ect. but the stock jh7. and the froyo leaked ji6 modems kick ass where im at. it even relialably plays youtube while on on the edge network.
Ive come down to di11is roms are the fastest. smoothest and the BEST gps. no bugs. has any one tried that modem on those roms? ie 6.0 . well i use that modem on some other roms and i know you need a matching kernel. so i flashed kernel then modem. still boot loops. anyone found a combo that works? is there a voodoo sound/lagfix kernel that works with this rom/modem. on cognition 3.04 i used .v4 gb kernel/ji6. and worked great. just have much love for di11is roms
Click to expand...
Click to collapse
If you read around, the pattern for modems is location based. It seems some modems work better in areas that other modems bomb out. I am going to take a chance and say you are in Kentucky if I read your user name correctly. It is helpful to others when talking about the modem that works best for you to be a little more specific then "I live in America". America can mean many different countries. (unfortunately in todays world climate it really only means one place)
Sorry just a pet peeve of mine.
For me in central florida jl2 has been the best. I will test ji6 to see how it goes for me. Hopefully it will become a preferred modem.
Again I am not trying to be a troll, sorry if it sounds like it.
phlunkie said:
If you read around, the pattern for modems is location based. It seems some modems work better in areas that other modems bomb out. I am going to take a chance and say you are in Kentucky if I read your user name correctly. It is helpful to others when talking about the modem that works best for you to be a little more specific then "I live in America". America can mean many different countries. (unfortunately in todays world climate it really only means one place)
Sorry just a pet peeve of mine.
For me in central florida jl2 has been the best. I will test ji6 to see how it goes for me. Hopefully it will become a preferred modem.
Again I am not trying to be a troll, sorry if it sounds like it.
Click to expand...
Click to collapse
I don't understand that at all..... the only real difference is if the area covered is 850/1900 or 1900 only..... otherwise how can there be a difference?
shoman94 said:
I don't understand that at all..... the only real difference is if the area covered is 850/1900 or 1900 only..... otherwise how can there be a difference?
Click to expand...
Click to collapse
I do not disagree with what you say. But reading around there are very similar findings in specific areas. I will look for the threads in the morning. Nyquil kicking in.
im auctually from indiana. sorry for putting up america. At first this modem stuff didnt make sense. How 5 different modems will have 5 bars but each one has different results. would be nice if it was like a pc. windows or linux or mac. where if the drivers installed they just work. Its just such a deal breaker when i get to work and the net is just slow even with 5 bars. (jl1 jl2. jk3 jk4) but with ji6 it works great. and speed test are wayy higher. am now checking out deviant roms. found i9000 with voodoo and ji6. hmm might be able to get di11is working with ji6 here in a minute!
well tried firebird 2.0. tried few other kernals no luck. i flashed kernal first. then modem. no luck. firebird says works will all modems. ive tried. both 959 vibrant ji6 and ucji6 cappy modem. same result. sends it to boot loop. its something easy. is it because its a i9000 based rom? cog 3.04 it works with all those kernals ive tried on dillis

Super newbie Question (Modem)

first of all I installed MIUI rom a week ago ..
it took me 2 hours to just do that..
then I figured out that people are flashing thing called "kernel' which apparently makes phone faster. So i flashed glitch kernel
then I noticed people talking about modem..
what does this modem do and what is the best modem for miui rom?
thanks in advance
I am a super newbie as well.
But I think people change their modem because sometimes the phone signal (3G/2G or whatever) is just too lower than the usual.
It seems to be different phone to phone. But if your phone signal seems normal, you don't need to anything (I guess )
Feelosopher said:
I am a super newbie as well.
But I think people change their modem because sometimes the phone signal (3G/2G or whatever) is just too lower than the usual.
It seems to be different phone to phone. But if your phone signal seems normal, you don't need to anything (I guess )
Click to expand...
Click to collapse
i hav good signal so im good i guess
thx for the info
candoo100 said:
first of all I installed MIUI rom a week ago ..
it took me 2 hours to just do that..
then I figured out that people are flashing thing called "kernel' which apparently makes phone faster. So i flashed glitch kernel
then I noticed people talking about modem..
what does this modem do and what is the best modem for miui rom?
thanks in advance
Click to expand...
Click to collapse
Modems are the software that establishs and controls your phone, data and gps signal. Some modems work better in certain regions or with certain carriers. Some may be best with gps, or shine at data transmission. Also if your phone supports the 850 band you will need a modem that supports that. Getting the best signal you can is important because the sgs can burn a lot of battery life seeking and finding a solid connection.
Modems are painless and quick to flash via recovery, so it never hurts to try a few out to find the best for you and your usage.
Sent from my GT-I9000 using XDA Premium App
rschenck
Thanks for this educative info.
When we think to root, we should know some know hows to avoid such issues.

Help choosing a modem.

I'm currently switching up ics roms and kernels to see which works best for me but I do not understand modems so I need some help here. I saw jk4 on the map close to me. I live in jacksonville fl and commute all around the city and west of jacksonville daily I was wondering which ones to try out.
Thanks
Sent from my SGH-I897 using XDA
donk232 said:
I'm currently switching up ics roms and kernels to see which works best for me but I do not understand modems so I need some help here. I saw jk4 on the map close to me. I live in jacksonville fl and commute all around the city and west of jacksonville daily I was wondering which ones to try out.
Thanks
Sent from my SGH-I897 using XDA
Click to expand...
Click to collapse
Just start downloading them and trying them, giving them about 2 days before you decide if you like it. Several factors to consider are call quality, signal strength, battery life, and GPS reception. Since your using ICS roms, you must use the modems packaged as CM7/MIUI. You try using something else and it won't flash.
Look >>HERE<< for all the modems you would ever want to try. (FWIW, I like BVJWW2)
Like mrhaley said, there are a variety of things that affect it. JK4 worked great for me when I was in Florida, so I would start there. JW2 is nice also, but it seems like people can't hear me as well with it.
Sent from my ICS Samsung Captivate
JK4 FTW! I've stayed with it since Eclair and it still works great now I'm on THS ICS. Great starting point to try out.
Sent from my SGH-I897 using XDA
I flashed jk4 just now. Im over my data limit so I will not be testing internet yet, if it works better I will see better battery life because service is better and faster internet? Is that right?
Sent from my SGH-I897 using XDA
I'm not sure about better battery life but call quality, data speed and connection stability will definitely improve if the modem is right for you
Sent from my ICS-powered Cappy
rheicide said:
I'm not sure about better battery life but call quality, data speed and connection stability will definitely improve if the modem is right for you
Sent from my ICS-powered Cappy
Click to expand...
Click to collapse
Better battery life will happen if it gives you better signal strength in the areas you spend the most time.
Sent from my ICS Samsung Captivate
korockinout13 said:
Better battery life will happen if it gives you better signal strength in the areas you spend the most time.
Sent from my ICS Samsung Captivate
Click to expand...
Click to collapse
Thanks for that info
hope can get some advice
Hello guys, a few days back I flashed teamhacksung's CM9 ALPHA for Captivate (BUILD 17) on my wife's phone, but she has told me that her apps are not syncing outside of a wifi connection.
I'm thinking it might be something related to the modem.
So I'm looking for any advice on which moden should I load, considering we live in Venezuela? Any tips?
Regards.
rupalazzi said:
Hello guys, a few days back I flashed teamhacksung's CM9 ALPHA for Captivate (BUILD 17) on my wife's phone, but she has told me that her apps are not syncing outside of a wifi connection.
I'm thinking it might be something related to the modem.
So I'm looking for any advice on which moden should I load, considering we live in Venezuela? Any tips?
Click to expand...
Click to collapse
Someone listed the "UGKC1" modem in use in Panama. You might consider UGJL2 or UGKG3 also, near by. Search "soggy cashew captivate modem" and check the map. Update your own listing if you find something that works.
rupalazzi said:
Hello guys, a few days back I flashed teamhacksung's CM9 ALPHA for Captivate (BUILD 17) on my wife's phone, but she has told me that her apps are not syncing outside of a wifi connection.
I'm thinking it might be something related to the modem.
So I'm looking for any advice on which moden should I load, considering we live in Venezuela? Any tips?
Regards.
Click to expand...
Click to collapse
That is a bit out of date, you probably should flash a newer build
Sent from my ICS Samsung Captivate
Thanks for the info guys, had to flash elite v. 10.1 rom, this was the only rom that would enable data service.
Tried:
AOKP-captivatemtd-build-35
F1-galaxynexus-galaxys-20120502-beta2
Nostalgia-b31-v5.4
Team ICSSGS
CM9-20120510-nightly
CNA-1.5.5
Dark Knight v5.5
Elite v.10.1 was the only rom that connected data service.
The good things is that my wife likes it as is right now, which makes it easy on me. Hehehe.
Regards.
Sent from my GT-N7000 using XDA

UK GPS Signal on ICS

Anyone got any solid advice, fact based evidence on how to sort out out dodgy GPS signal on ics. Tried many modems, many gps.conf files, they make a little difference but still nowhere as good as GB. Currently using slim 3.7 on semaphore, thx dudes
Sent using TCP/IP
JW4-Modem
gsw5700 said:
Anyone got any solid advice, fact based evidence on how to sort out out dodgy GPS signal on ics. Tried many modems, many gps.conf files, they make a little difference but still nowhere as good as GB. Currently using slim 3.7 on semaphore, thx dudes
Sent using TCP/IP
Click to expand...
Click to collapse
Allegedly, the JW4 modem ICS to work well. Tested themselves I don't have that but yet ^^
thanks, tried jw4 and jvu, these were fine on GB but not on ics, so it must be something else, just need to find out what
Sent using TCP/IP
try JVT modem from the modem thread in here somewhere. it has good signal and else on ICS. Im in ireland and have no problem with reception or gps. hope it will work well in uk.
cheers mate, tried jvt (and a few more from perkas stash) wiped cache/dalvik, still dodgy grrrrrrr,
was great on GB, 5-15m, no drops, as soon as i flashed ics, its 10-40m with dropouts, was the same on cm9 and slim, annoying as i use navigation a lot, thx for reply
oh, i do get a decent fix when stationary, then it loses the plot a bit when i start driving
Sent using TCP/IP
Been looking around other forums, it appears that ics does provide a dodgy GPS signal for many phones. Thats that then :'(
Sent using TCP/IP
Noticed that, too. On any ICS ROM I tried GPS signal is very jumpy, fixes take ages and the refresh rate of the GPS signal is every 100-300 meters.
Flashed Darky ROM 9.5 to see if the battery runtime is indeed as good as everyone states (in my opinion better then GB but equal to ICS) and experienced fabulous GPS performance, fixes in 5-10 seconds and constant GPS signal. However there might also be GB ROMs that are equally performant.

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